M0564LE4AE Datasheet, PDF (58/161 Pages) List of Unclassifed Manufacturers – 32-BIT MICROCONTROLLER

M0564
6.2 System Manager
6.2.1 Overview
The system manager provides the functions of system control, power modes, wake-up sources,
reset sources, system memory map, product ID and multi-function pin control. The following
sections describe the functions for
 System Reset
 Power Modes and Wake-up Sources
 System Power Distribution
 SRAM Memory organization
 System Control Register for Part Number ID, Chip Reset and Multi-function Pin
Control
 System Timer (SysTick)
 Nested Vectored Interrupt Controller (NVIC)
 System Control register
6.2.2 System Reset
The system reset can be issued by one of the events listed below. These reset event flags can be
read from SYS_RSTSTS register to determine the reset source. Hardware reset sourcces are
from peripheral signals. Software reset can trigger reset through setting control registers.
 Hardware Reset Sources
– Power-on Reset (POR)
– Low level on the nRESET pin
– Watchdog Time-out Reset and Window Watchdog Reset (WDT/WWDT Reset)
– Low Voltage Reset (LVR)
– Brown-out Detector Reset (BOD Reset)
– CPU Lockup Reset
 Software Reset Sources
– CHIP Reset will reset whole chip by writing 1 to CHIPRST (SYS_IPRST0[0])
– MCU Reset to reboot but keeping the booting setting from APROM or LDROM by
writing 1 to SYSRESETREQ (AIRCR[2])
– CPU Reset for Cortex^® -M0 core Only by writing 1 to CPURST (SYS_IPRST0[1])
May 05, 2017
Page 58 of 161
Rev 1.00